Que: Gold crystalises in ccp structure. The total number of voids present in 197 g of gold will be [Au=197]
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1
8 tetrahedral and 4 octahedral voids are present.
Kritishahare:
You have to find out the total no. of voids!
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5
no.of atoms in one fcc unit cell= 4
no of voids present(octahedral voids+ tetrahedral voids)=2n+n=3n
(where n=number of atoms)
total number of voids present=12
for one atom no.of voids =12/4=3
for 197 grams of gold 3Na
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